diff --git a/src/websock/Webserver.cpp b/src/websock/Webserver.cpp
index 3f793111..1a12fcdf 100644
--- a/src/websock/Webserver.cpp
+++ b/src/websock/Webserver.cpp
@@ -677,7 +677,8 @@ namespace xo {
                     /* .origin_protocol */    LWSMPRO_CALLBACK, /* dynamic */
                     /* .mountpoint_len */         4,      /* char count */
                     /* .basic_auth_login_file */  NULL,
-#                  if (LWS_LIBRARY_VERSION_MAJOR < 4) || (LWS_LIBRARY_VERSION_MINOR < 3)  // -Werror=missing-field-initializers
+#                  if ((LWS_LIBRARY_VERSION_MAJOR < 4)
+                       || ((LWS_LIBRARY_VERSION_MAJOR == 4) && (LWS_LIBRARY_VERSION_MINOR < 3)))
                     /* ._unused[] */ { nullptr, nullptr },
 #                  endif
                 };
@@ -704,6 +705,10 @@ namespace xo {
                     /* .origin_protocol */    LWSMPRO_FILE,   /* files in a dir */
                     /* .mountpoint_len */         1,      /* char count */
                     /* .basic_auth_login_file */  NULL,
+#                  if ((LWS_LIBRARY_VERSION_MAJOR < 4)
+                       || ((LWS_LIBRARY_VERSION_MAJOR == 4) && (LWS_LIBRARY_VERSION_MINOR < 3)))
+                    /* ._unused[] */ { nullptr, nullptr },
+#                  endif
                 };
             } /*init_mount_static*/